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Second Lecture Exam in Vertebrate Zoology, Biology 03051, Spring 2000

Dr. W. Crone (303 FTZ, 629-7439, cronewil@hvcc.edu, http://www.hvcc.edu/academ/faculty/crone/index.html)

Week 8: Tuesday, March 7, 1-2 PM

(if HVCC is closed because of weather at that time, the test will be Tuesday, 3/14 @ 1 PM)

Bring sharpened #2 pencils (I will not supply them and you will get a zero on the multiple choice if you cannot fill out the Scantron forms in pencil)!!

Also note: I will take one point off where you do not put your name on the front page of the test, the last page of the test, and the Scantron form. I shouldn't have to do this for you!

THIS TEST WILL BE INCLUDED IN YOUR MIDTERM GRADES (unless delayed a week by snow).

The second test will cover materials covered in the lecture and text for weeks 4-7. I would recommend that you are particularly comfortable with your lecture notes, lecture handouts, video review sheets, and additional topics covered by the second set of homework questions.

35 multiple choice questions, 2 points each, for a total of 70 points

2 essays taken from below, 15 points each, for a total of 30 points

100 points total for this second lecture exam.

Below are three possible essay topics. I will choose two for the exam, with issues in the other one to be covered by multiple choice questions. You are expected to prepare your thoughts about these essays (the reason I'm giving them to you ahead of time), but you will not be allowed to take notes or prewritten portions of essays into the test.

1. What is buoyancy? Describe how cartilaginous and bony fish achieve it.
2. What is the difference between the circulatory system of a bony fish (even a lungfish) and that of an amphibian? Why might that be significant for the amphibian's ability to live on land?
3. In what ways are reptiles better adapted than amphibians to live on land?

Here are some sample multiple choice questions from a previous year's test. The correct answers are at the bottom of the next page.

1. The function of the spiracle in skates and rays (and sharks for that matter), is for:

1. air intake
2. water intake
3. the reception of bioelectric fields from prey buried in the sea bottom
4. an alternative mouth to capture large prey
5. ammonia waste intake

2. In a fish, which blood vessel will be carrying oxygenated blood?

1. dorsal aorta
2. cardinal vein
3. hepatic vein
4. ventral aorta
5. portal vein

3. Which organism will produce the most eggs at one time?

1. ray
2. shark
3. perch
4. human being
5. ratfish

4. The amphibians which show convergent evolution with snakes (i.e., legless bodies, burrowing habits, etc.) are called:

1. anurans or frogs
2. sphenodonts or tuataras
3. urodelans or salamanders
4. pelycosaurs or Dimetrodon
5. gymnophionans or caecilians

5. Identify the incorrect statement.

1. The amphibian skin is smooth and moist with many glands, some of which may be poison glands, e.g., tropical tree frogs.
2. All amphibians have a double circulation with both pulmonary and systemic circuits.
3. The most derived/advanced amphibians, the anurans or frogs, have a four-chambered heart with two atria and two ventricles.
4. All amphibians are ecothermal.

6. Which of the following is not part of a tetrapod hip bone?

1. urostyle
2. ilium
3. ischium
4. pubis

7. A characteristic that snakes do not have is/are:

1. scaly skin
2. moveable eyelids
3. internal fertilization
4. an elongated, limbless body

Answers: 1-B, 2-A, 3-C, 4-E, 5-C, 6-A, 7-B

|main page| |background| |03028: Physiology| |03048: Anatomy|

|03050: Invertebrate Zoology| |03051: Vertebrate Zoology| |03074: Economic Botany|

Please send comments and questions to: cronewil@hvcc.edu

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This web page last updated on February 15, 2000